BEST ANSWER:Dimples are indentations in the bar for the wires to set in so the switch housings can clamp securely to bar. Without dimples you would have to drill holes in the bar and elongate the holes into slots to make room for the wires. This can be done but not required with dimples

BEST ANSWER:Dimples are indentations in the bar for the wires to set in so the switch housings can clamp securely to bar. Without dimples you would have to drill holes in the bar and elongate the holes into slots to make room for the wires. This can be done but not required with dimples